10321663 has 6 divisors (see below), whose sum is σ = 11345432. Its totient is φ = 9383220.

The previous prime is 10321643. The next prime is 10321679. The reversal of 10321663 is 36612301.

It is not a de Polignac number, because 10321663 - 2⁹ = 10321151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42531 + ... + 42772.

Almost surely, 2^10321663 is an apocalyptic number.

10321663 is a deficient number, since it is larger than the sum of its proper divisors (1023769).

10321663 is an equidigital number, since it uses as much as digits as its factorization.

10321663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85325 (or 85314 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 10321663 is about 3212.7345050595. The cubic root of 10321663 is about 217.7291406398.

Adding to 10321663 its reverse (36612301), we get a palindrome (46933964).

The spelling of 10321663 in words is "ten million, three hundred twenty-one thousand, six hundred sixty-three".